Our specimen bags are designed to contain liquid if a urine bottle should leak. The bags utilize a unique adhesive strip which forms a leak-proof, tamper-evident seal that is impossible to reopen without destroying the bag. Our bags are available with and without liquid absorbing sheets which contain an immobilizing agent that “gels” when it comes in contact with urine. Unlike liquid absorbing packets, our sheets will absorb from a few drops to the entire contents of a specimen bottle.